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A Low-Cost Imaging System for Aerial Applicators

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Presentation on theme: "A Low-Cost Imaging System for Aerial Applicators"— Presentation transcript:

1 A Low-Cost Imaging System for Aerial Applicators
Chenghai Yang, Clint Hoffmann Fred Gomez, Lee Denham, Charles Harris, Phil Jank USDA-ARS Aerial Application Technology Research Unit College Station, TX 48th NAAA Convention & Exposition Louisville, KY, Dec. 8-11, 2014

2 Nov./Dec. 2014, Vol. 41, No. 6, p

3 Why Do You Need a Low-Cost Imaging System?
Current imaging systems are too expensive or too complex to be of practical use for you. You can assemble a low-cost, user-friendly system. You can install it on your aircraft to provide imaging service. You will learn the know-how.

4 Imaging System Components
Nikon D90 CMOS camera with Nikon 24mm lens $1000 Nikon GP-1A GPS unit $200 AUVIO 7” LCD monitor $80 Vello FreeWave wireless remote trigger $40 Total: $1320

5 User’s Manual

6 Camera Setup Focus: Infinity Shooting mode: Manual Exposure: 1/500 s
Aperture: f/13

7 Camera Setup (Continued)
Image size: 4288 x 2848 Image quality: Fine

8 System Mounted on Air Tractor
Monitor GPS Trigger Camera is attached to right step on AT-402B GPS & monitor in cab

9 Airborne Image Acquisition
Weather: Clear and calm days Time: 10:30 am to 3:30 pm Altitude: ,000 ft Speed: MPH Keep your aircraft straight and level!

10 Ground Coverage with Flight Height
AGL (ft) Pixel Size (in) Ground Coverage (ft × ft) (acre) 500 1.4 500×330 5 1000 3 1000×660 15 2000 6 2000×1300 60 3000 8 3000×2000 130 4000 11 4000×2600 240 5000 14 5000×3300 370 6000 17 6000×4000 540 7000 19 7000×4600 730 8000 22 8000×5300 950 9000 25 9000×5900 1200 10000 28 10000×6600 1500

11 Sample Image ft AGL Coverage: 1000’ x 660’, 15 ac; Pixel: 3”

12 Sample Image ft AGL Coverage: 3000’ x 2000’, 130 ac; Pixel: 8”

13 Sample Image ft AGL Coverage: 5000’ x 3300’, 370 ac; Pixel:1’2”

14 Take Continuous Images from a Large Area along Flight Lines
5000 ft AGL 30% overlap 3500 ft interval 4 flight lines 150 MPH 1 image per 10 s 3 mi x 4.5 mi 8640 ac

15 Now You Have Pictures, Then What?
You can use 3 software packages: Picasa (free download); Google Earth (free download); Adobe Photoshop CC ($20/month subscription).

16 Create a KMZ File to Include Geo-Tagged JPG Images Using Picasa

17 Open KMZ file in Google Earth to View Geo-Tagged Images

18 Create Mosaicked Image Using Adobe Photoshop CC

19 Mapping Cotton Root Rot

20 Mapping Cotton Root Rot
Field size: 68 ac Infected: 8 ac (12%)

21 Mapping Hog Damage on Corn

22 Mapping Pigweed

23 Mapping Winter Weed Henbit

24 To see demo and get more info,
Thank You! To see demo and get more info, visit our booth (#1202)! $1, Vs $70,000


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